D-Link DGS-3620-52P Web UI Reference Guide - Page 238

xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide Figure 5-113 PIM for IPv6 Multicast Route S-G RPT Table - View Detail window VRRP VRRP or Virtual Routing Redundancy Protocol is a function on the Switch that dynamically assigns responsibility for a virtual router to one of the VRRP routers on a LAN. The VRRP router that controls the IP address associated with a virtual router is called the Master, and will forward packets sent to this IP address. This will allow any Virtual Router IP address on the LAN to be used as the default first hop router by end hosts. Utilizing VRRP, the administrator can achieve a higher available default path cost without needing to configure every end host for dynamic routing or routing discovery protocols. Statically configured default routes on the LAN are prone to a single point of failure. VRRP is designed to eliminate these failures by setting an election protocol that will assign a responsibility for a virtual router to one of the VRRP routers on the LAN. When a virtual router fails, the election protocol will select a virtual router with the highest priority to be the Master router on the LAN. This retains the link and the connection is kept alive, regardless of the point of failure. To configure VRRP for virtual routers on the Switch, an IP interface must be present on the system and it must be a part of a VLAN. VRRP IP interfaces may be assigned to every VLAN, and therefore IP interface, on the Switch. VRRP routers within the same VRRP group must be consistent in configuration settings for this protocol to function optimally. VRRP Global Settings This window is used to configure the VRRP Global settings for this switch. To view the following window, click L3 Features > VRRP > VRRP Global Settings, as shown below: Figure 5-10314 VRRP Global Settings Window The fields that can be configured are described below: Parameter Description VRRP State Click the radio buttons to enable or disable the VRRP Global state. Non-owner Response Click the radio buttons to enable or disable that the virtual IP address is allowed to be Ping pinged from other host end nodes to verify connectivity. Click the Apply button to accept the changes made. 228